China Taps Its $28 Trillion Capital Markets to Fund an AI Race With the US

CXMT Corp.'s trading debut in Shanghai last month turned the memory-chip maker into China's most valuable listed company within hours. It also capped one of Beijing's most aggressive efforts yet to mobilize the country's $28 trillion stock and bond markets behind its AI and chip ambitions, a shift away from its longtime reliance on subsidies and direct state funding.

CXMT's Debut Made It China's Most Valuable Listed Company

CXMT, formally ChangXin Memory Technologies, priced its initial public offering at 8.66 yuan a share on Shanghai's STAR Market. According to Bloomberg's reporting, the stock surged more than 500% within hours of trading, enough to make CXMT the most valuable stock in mainland China and to knock Industrial and Commercial Bank of China off a perch it had held for years. CNBC's account of the same session put the closing gain at roughly 466%, with shares ending at 49 yuan and CXMT's market capitalization landing around 3.3 trillion yuan against ICBC's 2.6 trillion yuan. Other outlets tracking the intraday high, rather than the close, reported gains above 530% and a peak valuation exceeding Intel Corp.'s market cap, a reminder that the exact number depends on which moment of a chaotic trading session gets measured.

The listing itself was unusually fast. CXMT was the first company to go through a "preliminary review" pilot that Beijing reserves for strategically important firms, letting regulators resolve issues before the formal application stage. That let it go from filing to trading in under eight months, a process that can otherwise take years, and raise on the order of $8.6 billion to $9.8 billion depending on the source, making it Asia's largest IPO of 2026. Days before the debut, a broader tech-stock selloff threatened to derail the moment; regulators, state funds and major investors intervened with unusual speed to stabilize sentiment, in what Bloomberg's sourcing describes as one of Beijing's broadest rescue efforts in years. For more on the trading session itself, see CXMT's stock rocketed as much as 535% in its Shanghai debut.

Beijing Is Turning to Capital Markets Instead of Subsidies

The CXMT frenzy was, in Bloomberg's framing, the culmination of a broader pivot: China has rarely used its capital markets as a major industrial-policy tool, leaning instead on subsidies, tax breaks and direct state investment. That is changing. Regulators have fast-tracked IPOs for strategically important companies and widened access to bond financing, and when tech stocks sold off in July, authorities stepped in quickly to restore confidence.

The scale of the gap Beijing is trying to close is stark. Chinese tech firms raised roughly $217 billion through IPOs and bond sales over the past two years, according to Bloomberg-compiled data. For every $1 raised that way, US peers, led by Amazon.com Inc. and Alphabet Inc., raised more than $6. The strategy is meant to open a new spigot: the $26 trillion held by Chinese households, the world's largest pool of household savings, alongside financing costs that are already among the cheapest in the world for Chinese companies. Chris Miller, a Tufts University professor and author of "Chip War," told Bloomberg that if Chinese firms secure a durable capital-access advantage it would help them, though domestic compute remains substantially more expensive because of lower-quality Chinese AI chips.

Chinese Tech Bonds Are Scarce but Historically Cheap

The bond market tells a similar story with a twist: China is behind on volume but ahead on price. Chinese tech companies have sold at least $38 billion of onshore and offshore bonds this year, the most for the period since 2016, but that is only about 7% of the $578 billion raised by US counterparts, a third of which came from Amazon, Alphabet and SpaceX alone. What China lacks in scale it partly makes up in cost. Major Chinese tech companies are borrowing at an average bond coupon of 1.9% this year, more than 300 basis points below their US peers, the widest gap since at least 2015. Contemporary Amperex Technology Co., the battery maker, issued five-year yuan notes at a 1.58% coupon, versus the 5.25% South Korea's LG Energy Solution paid on a similarly dated dollar bond. "This creates a meaningful competitive advantage," Zhu Lei, head of Asian fixed income at Fidelity International, told Bloomberg, adding that patient capital lets Chinese firms invest more aggressively in AI, capacity and research. Smaller, non-state issuers are starting to benefit too: Jiangsu Lettall Electronic Co. sold its first public bonds in March, raising 200 million yuan at a 2.5% coupon to buy AI computing equipment, something its board secretary, Ajing Ding, said would have been difficult before this year.

The Rally Is Real, but So Are the Warnings About Froth

Investors are following the policy signal. Money has moved out of property, consumer and other traditional sectors into chipmakers and advanced manufacturers, and tech's weighting in the CSI 300 has grown to rival, and at times exceed, that of financials. The chip-heavy STAR 50 Index hit a record in June and is up 30% this year, dwarfing the CSI 300's 1.4% gain. More listings are lined up behind CXMT: Z.AI Co. and MiniMax Group Inc. are pursuing mainland listings after debuting in Hong Kong, Moonshot AI has told investors it could go public within about six months, and DeepSeek has begun laying groundwork for its own offering.

Not everyone is convinced the rally reflects fundamentals. Gary Tan, a portfolio manager at Allspring Global Investments, told Bloomberg that CXMT trades at a significant premium to global memory peers, suggesting policy-driven sentiment and scarcity value matter more than earnings right now. Fidelity's Zhu pointed to solar panels and electric vehicles as a cautionary precedent, where years of strong policy support eventually produced overcapacity and weaker profitability. Hongxu Wei, a senior economist at the think tank Anbound, put the broader caveat plainly: "Capital is a necessary condition, but it is not a sufficient one." Land, technology and talent matter too, he said, and the real test is turning breakthroughs into commercial products. On that front China may need less capital than the number above suggests: UBS Group AG estimates Chinese frontier-model training costs run under 10% of what OpenAI and Anthropic PBC are said to spend, with API pricing for major Chinese models below a fifth of comparable global peers. That financing question is unfolding alongside a parallel fight in Washington, where nearly 200 US startups are urging the Trump administration against a blanket ban on Chinese open-weight models, arguing that cutting off cheap Chinese AI would hurt American builders more than it would slow Beijing. As Brookings fellow Kyle Chan told Bloomberg, the country that sustains investment across both innovation and industrial capacity will hold the lasting edge.